The revised torpedo was designated the Mk 13-A1 and quickly became known to Avenger crews as the 'ring-tailed' torpedo. The improved flight characteristics of the 'ring-tailed' torpedo now allowed drops from up to 800 feet and airspeeds of 280 knots, greatly increasing the Avengers chances of surviving during a torpedo attack against a heavily armed enemy ship.
As long as their are manned 5 inch guns there is no reason to even try.